EP 1034360 B1 20040707 - SOUND MUFFLING MATERIAL AND METHOD OF MAKING THEREOF
Title (en)
SOUND MUFFLING MATERIAL AND METHOD OF MAKING THEREOF
Title (de)
SCHALLDÄMPFENDER WERKSTOFF UND VERFAHREN ZU SEINER HERSTELLUNG
Title (fr)
MATIERE AMORTISSANT LE BRUIT ET PROCEDE DE FABRICATION DE LADITE MATIERE
Publication
Application
Priority
- GB 9803284 W 19981104
- GB 9723148 A 19971104
Abstract (en)
[origin: WO9923367A1] A sound muffling material for use in combustion engine exhaust mufflers. The material includes volumised fibres (1) retained in compressed form by a material (2) of lower softening temperature than the fibres (1). When the material is heated by exhaust gases the material of lower softening temperature (2) is softened allowing the compressed fibres (1) to expand. The fibres (1) may be formed into a knitted fabric retained by a sacrificial thread (2). The material may be used to support catalyst bricks.
IPC 1-7
IPC 8 full level
F01N 1/24 (2006.01); F01N 3/28 (2006.01); F01N 7/18 (2006.01); F01N 13/18 (2010.01)
CPC (source: EP US)
F01N 1/24 (2013.01 - EP US); F01N 3/2853 (2013.01 - EP US); F01N 13/18 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE FR GB IT
DOCDB simple family (publication)
WO 9923367 A1 19990514; AU 9754898 A 19990524; DE 69824970 D1 20040812; DE 69824970 T2 20050908; EP 1034360 A1 20000913; EP 1034360 B1 20040707; GB 9723148 D0 19980107; US 6457555 B1 20021001; US RE42634 E 20110823
DOCDB simple family (application)
GB 9803284 W 19981104; AU 9754898 A 19981104; DE 69824970 T 19981104; EP 98951593 A 19981104; GB 9723148 A 19971104; US 53073900 A 20000710; US 95752598 A 19981104